Lin Zhiwei said something she shouldn't have said and was entangled by the "mountain"; Su Wan wanted to save her, and the two fled into the mountain, agreeing "not to separate or betray".
Transferring schools, parasitism, dreams in ancient tombs... "Mountain" is learning from her, and "Tomb" is waiting for her. Six hundred miles apart, they continued to talk and were together in separation.
Carrying two ancient beings on both shoulders, the countdown accelerates. On October 12, 2016, they must meet - to complete the fourth answer, or become part of the mountain.
This is a story about "asking" and "not asking", and it is also about how two independent people continue to dialogue in silence.
"The mountains are silent, but the wind in September will remember everything."
Concept: Dialogue in silence